baber/WOPTO huggingface dataset:
Patent CA-2140776-A1 (CA)
Title: A method of determining the amount of waste deposited on filter cloths of a drum filter and a device for carrying out the method
Inventor: STRNAD JOSEF
IPC: G01N5/00
Filed: 1993-08-02
Abstract: The invention relates to a method of determining the amount of waste deposited on filter cloths of the drum (1) of a drum filter rotatably suspended on a shaft (4). Recorded are the changes in the total mass (weight) of the drum (1) of the drum filter which correspond to the changes in the amount of waste deposited on filter cloths and to the changes in the height of the level of soiled liquid inside the drum (1) of the drum filter. The device for carrying out the method comprises a drum (1) rotatably suspended on at least two suspension-type supporting members (2) embracing the shaft (4) mounted on the stationary frame (6) of the drum filter. At least one force recorder (7) is provided for between the shaft (4) and the stationary frame (6).
Patent CA-2140886-A1 (CA)
Title: Variable data clear mark imaging
Inventor: CHRISTY ORRIN D
IPC: B42D15/10
Filed: 1994-06-06
Abstract: A security document is produced from a paper substrate having invisible hydrophobic toner blended into the paper. The clear toner is produced by milling (11) and classifying (12) a polyester resin, mixing it with a silica flowing agent (13), and then electrostatically imaging the toner (16) onto the paper substrate. An infrared absorbing a UV responsive dye may be added to the toner so that it is visible under infrared/ultraviolet light respectively. When applied to the paper the toner is snow white, but after infrared heat fusing (18) it blends into the paper and is substantially invisible. The security indicia is easily made visible by passing a conventional marker nib over it, or other mechanism for applying a water based low concentrate colored ink (20) which is readily absorbed by the surrounding paper, but not by the hydrophobic security indicia.
Patent CA-2142025-A1 (CA)
Title: Programmable Remote Control Transmitter
Inventor: WININGER DIXON
IPC: H04N21/47
Filed: 1995-02-07
Abstract: A programmable remote control transmitter has a programming mode and a controlling mode and is used to control electric devices such as television sets. The remote control transmitter has a memory for storing a limited number of remote control codes. There is a keypad for selecting one of the stored codes and a transmitter for transmitting the remote control signal corresponding to the selected remote control code to the electric device such as a television set. Remote control codes are able to be input to the memory of the remote control transmitter only when the remote control transmitter is in programming mode. In normal operation the remote control transmitter is in controlling mode. A removable key must be used to change the mode of the remote control transmitter from controlling mode to programming mode.
Patent CA-2143945-A1 (CA)
Title: A method for the detection and treatment of prostate disease
Inventor: DJAKIEW DANIEL
IPC: G01N33/50
Filed: 1993-09-09
Abstract: The invention generally features a method of diagnosing a precancerous or cancerous condition of the prostate gland by monitoring levels of nerve growth factor receptor, or fragments thereof. The invention also features a method of treating a precan-cerous of cancerous condition of the prostate gland by administering a preparation of nerve growth factor receptor, or a fragment thereof.
Patent CA-2145445-A1 (CA)
Inventor: BONAQUIST DANTE P
IPC: F25J3/04
Filed: 1995-03-24
Abstract: A cryogenic rectification system for producing large quantities of elevated pressure nitrogen employing an additional column operating at a pressure intermediate to that of higher and lower pressure columns, thereby optimizing nitrogen recovery by improving the flexibility of refrigeration production.
Patent CA-2148640-A1 (CA)
Inventor: JOHNSON DAVID A
IPC: G01R1/073
Filed: 1995-05-04
Abstract: A connector for electrically interconnecting a lead of a device to a terminal spaced at a distance from the lead.   The apparatus includes a conductive element comprising a first contact, a shoulder, and a second contact.  The first contact is attached to the shoulder and extends upward therefrom, and the second contact is attached to the shoulder and extends downward therefrom.  The first contact is electrically coupled to the lead of the device when the lead of the device is brought into engagement with the first contact.  The second contact is electrically coupled to the terminal.  A support member is positioned below the shoulder of the conductive element and a resilient biasing means comprising an elastomeric material is positioned between the shoulder of the conductive element and the support member.  The resilient biasing means resiliently biases the conductive element in an original position.   When a downward force is applied to the conductive element, however,  the resilient biasing means may be overcome thereby allowing the conductive element to move in a downward direction in response to the downward force.  The resilient biasing means returns the conductive element to the original position when the downward force is removed.
Patent CA-2148720-A1 (CA)
Title: Process for preparing octanediols
Inventor: MONFLIER ERIC
IPC: C07C33/02
Filed: 1993-11-04
Abstract: A method comprising a hydrodimerising reaction of 1,3-butadiene with water in the presence of a transition metal in the form of a metal or compound thereof, a tertiary or quaternary water-soluble phosphorus compound and at least a nitrogen compound, characterized in that the nitrogen compound is chosen from tertiary amine and a quaternary ammonium salt of general formula (I) or (II), wherein each of Rp, Rq and, if required Rs, which are the same or different, is a methyl or ethyl group, group Rr is C6-22 alkyl, group X<-> is a counter anion chosen from HCO3<->, CO3<2->, HSO3<->, SO3<2->, SiO3<2->, PO4<3->, HPO3<2->, AsO4<3->, SO4<2->, HSO4<->, RSO3<->, RCO2<->, OH<->, and R is an alkyl group; and in that said reaction is carried out in the presence of carbon dioxide.
Patent CA-2150194-A1 (CA)
Title: Cage-chair which may be coupled to helipcopters to perform construction and maintenance services in high voltage towers and lines
Inventor: MAZZONI CARLOS
IPC: B64D1/22
Filed: 1995-05-25
Abstract: A chair-cage coupled to helicopters to be used in construction and maintenance services in high tension towers and/or power lines.  This chair-cage is constructed of a tubular support structure, surrounded by a horizontal support tube of semi-circular shape. The shape of the chair-cage is based on the theory of the Faraday cage.  The operator may work standing or sitting.  The construction is simple and therefor easy to manufacture and the cost of manufacture is low.
Patent CA-2150659-A1 (CA)
Title: Low noise leak-proof flush valve for a toilet tank
Inventor: ZAMUDIO-CASTILLO MARIO-RODOLFO
IPC: E03D1/34
Filed: 1995-05-31
Abstract: A low-noise leak-proof flush valve for a toilet tank, to  be  connected  to  a  manually  operable  flush  lever mechanism, comprising: a flush tube securely coupled to a discharge opening of the tank; a hollow cap covering the flush tube, including a main cylinder housing coupled at the lower end of the flush tube near the bottom wall of the tank but separated therefrom,  and a secondary housing having a less diameter that the main housing, centrally coupled  to  the  top  of  the  main  housing  in  a  fluid communication therewith; and piston means slide coupled to said flush tube in said main cylinder housing, which is operable by the flush lever mechanism to lift the water contained in the cylinder housing to the top of the flush tube and through said secondary housing, crating a siphon effect allowing discharging water from the toilet tank, through said flush conduit.
Patent CA-2151863-A1 (CA)
Inventor: PASIN MARK
IPC: B60B37/00
Filed: 1995-06-15
Abstract: A child's tricycle comprising a pair of rear wheels, a front wheel, a seat positioned between the front and rear wheels, a support for the seat extending between the front and rear wheels, a handle for steering, and a steering fork having an upper end for supporting the handle and a bifurcated lower end for supporting the front wheel.  A one-piece crank extends through the front wheel and defines outer ends disposed on opposite sides of the front wheel for holding pedals whereby a child can propel the tricycle by applying foot pressure to the pedals to thereby turn the crank and associated front wheel.  A driving connection between the crank and front wheel is provided by a centrally located bend in the crank, and a centrally located opening defined by the front wheel snugly receiving the bend.  A head tube is eliminated by using a steering fork and steering wheel telescoping combination which extends through vertically-aligned openings in the tubular support extending longitudinally of the tricycle.  The rear step is formed by a tubular housing which includes end plugs supporting rear axle bearings while also having flanges serving as a safety barrier between the step and adjacent rear wheels.
Patent CA-2153530-A1 (CA)
Title: Automated audio presentations for promoting automobile sales
Inventor: MORGULIS VICTOR A
IPC: G09F25/00
Filed: 1995-07-10
Abstract: A system for promoting automobile sales includes a central station that maintains a data base of audio presentation segments relating to a wide range of new and used vehicles. A subscribing sales agency logs onto a computer of the central station and identifies a particular vehicle by make, year and model. The station computer then presents multiple options characteristic of the specified vehicle allowing the subscribing agency to select present options. In response to the user selection, the central station retrieves audio presentation segments appropriate for the vehicle, concatenates them to compose an audio presentation, then transmits the presentation over telephone lines to the agency. A portable playback unit is coupled to the agency's computer to receive the transmitted presentation. The playback unit is then located on the dashboard of the vehicle, empowered with an appropriate adapter from the cigarette lighter of the vehicle. An optical sensor faces the windshield and triggers playback when a potential customer waves his hand over the windshield.
Patent CA-2155516-A1 (CA)
Title: Inter-penetrating network charge modified microporous membrane
Inventor: HU HOPIN
IPC: C08L71/02
Filed: 1994-02-07
Abstract: Hydrophilic inter-penetrating network charge modified microporous membranes are provided as well as a method of preparing the membranes by casting a membrane matrix blend containing matrix polymer, a solvent system, a wetting polymer compatible with the matrix polymer, and a charge modified system which forms a cross-linked inter-penetrating network structure within the microporous membrane substate during the membrane fabrication process which network structure optionally can be locked in by heat curing. The membranes are useful for filtering ultrapure water with 18 megaohm-cm resistivity for the electronic industry, and they can also be used for the removal of a variety of contaminants from fluid media, such as very fine negatively charged particles, bacteria and endotoxins, with greatly enhanced filtration efficiency.
Patent CA-2159506-A1 (CA)
Title: Inhibitor of stem cell proliferation and uses thereof
Inventor: KOZLOV VLADIMIR
IPC: A61K38/42
Filed: 1994-03-29
Abstract: Disclosed and claimed are methods for the isolation and use of stem cell inhibiting factors for regulating the abnormal stem cell cycle and for accelerating the post-chemotherapy peripheral blood cell recovery. Also disclosed and claimed are the inhibitors of stem cell proliferation.
Patent CA-2160295-A1 (CA)
Title: Alternating current detector
Inventor: HARMAN R KEITH
IPC: G01R1/07
Filed: 1995-10-11
Abstract: A method of sensing alternating current in a cable having at least a pair of longitudinal conductors each of the pair carrying a current equal or unequal in absolute value to the other in mutually opposite directions, is comprised of disposing a coil with its lateral plane adjacent the cable in a position whereby electromagnetic fields caused by the currents intersect primarily different portions of the coil and induce current in the coil, and detecting the induced current in the coil.
Patent CA-2162775-A1 (CA)
Title: Pyridazinones and their use as fungicides
Inventor: SHABER STEVEN HOWARD
IPC: C07D237/14
Filed: 1995-11-14
Abstract: Compounds with fungicidal properties having formula I           (I) wherein W is CH3-O-X=C-CO(V)CH3; X is N or CH; V is O or NH; R4 and R5 are independently selected from hydrogen and substituted or unsubstituted alkyl and aryl groups and Q is substituted or unsubstituted aryl groups.
Patent CA-2163033-A1 (CA)
Title: A film bulk acoustic wave device
Inventor: WADAKA SHUSOU
IPC: H03H9/54
Filed: 1995-11-17
Abstract: Embodiments of the present invention provide a small and well-characterized bulk acoustic wave device by fabricating a filter having a wide band width or a resonator having a wide oscillation frequency range together with a semiconductor circuit.  In embodiments of the present invention, a bulk acoustic wave device comprises a semiconductor substrate having a dielectric substance layer thereon, the dielectric substance layer has a ground conductor layer thereon, the ground conductor layer has a piezoelectric ceramic thin film thereon and the piezoelectric ceramic thin film has a conductive electrode pattern thereon. The thickness of the piezoelectric ceramic thin film is more than ten times the thickness of the ground conductor layer, and the wave number of acoustic waves that propagate in a direction parallel to a surface of the piezoelectric ceramic thin film multiplied by the thickness of the piezoelectric ceramic thin film is less than 2.
Patent CA-2164054-A1 (CA)
Title: Article having a coating simulating brass
Inventor: MOYSAN STEPHEN R III
IPC: C23C14/06
Filed: 1995-11-29
Abstract: An article is coated with a multilayer coating comprising a nickel-tungsten-boron alloy layer deposited on the surface of the article, a refractory metal, preferably zirconium, strike layer deposited  on  the  nickel-tungsten-boron  alloy  layer,  and  a refractory metal compound, preferably zirconium nitride, deposited on the refractory metal strike layer.  The coating provides the color of polished brass to the article and also provides abrasion protection.
Patent CA-2164953-A1 (CA)
Title: Retroviral vectors for transducing beta-globin gene and beta-locus control region derivatives
Inventor: LEBOULCH PHILIPPE
IPC: A61K48/00
Filed: 1994-06-10
Abstract: A process and means for the design and the optimization of retroviral vectors transducing human .beta.-globin gene and .beta.-Locus Control Region (.beta.-LCR) derivatives, hereafter referred to as C9-globin/LCR] retroviruses, which successfully meet the following criteria required for gene therapy applications: (1) stability of proviral transmission (low frequency of rearrangements similar to retroviral vectors considered stable in the art) upon infection of cell-lines and murine bone marrow cells, (2) improved viral titer, thereby allowing successfful infection of bone marrow cells, and (3) high erythroid expression of the transduced human .beta.-globin gene, are described along with specific constructs.
Patent CA-2165219-A1 (CA)
Title: Gloss emulsion paints
Inventor: SIMPSON LESLIE AINSLEY
IPC: C08J3/215
Filed: 1995-12-14
Abstract: An aqueous gloss emulsion paint comprises a dispersion of structured composite particles, said structured particles comprising an association of particles of inorganic pigment and polymeric particles.  The polymeric particles are formed from a polymer or copolymer having a minimum film forming temperature not greater than 50°C.  The component particles of the composite particles are held in association as a result of surface charges on the particles said surface charges on the polymeric particles being of opposite sign to the surface charge on the particles of inorganic pigment.  The ratio of polymeric particles to particles of inorganic pigment in the composite particles is from 0.5: 1 to 6:1 by volume.
Patent CA-2168845-A1 (CA)
Inventor: BERNARD JEAN LUC
IPC: C03C13/00
Filed: 1995-06-19
Abstract: Composition de fibres minérales, biologiquement dégradable, caractérisée par la présence des constituants suivants en pourcentage pondéral: SiO¿2?: 45 à 60 %, Al¿2?O¿3?: moins de 2 %, CaO: 7 à 18 %, MgO: 4 à 10 %, Na¿2?O: 7 à 20 %, K¿2?O: 0 à 4 %, B¿2?O¿3?: 1 à 12 %, P¿2?O¿5?: 0 à 4 %, divers: 0 à 5 %, Na¿2?O + K¿2?O: 7 à 24 %, CaO + MgO: au minimum 15,5 % et au maximum 25 %, BaO: 0 à 5 %, TiO¿2?: 0 à 4 %, Cr¿2?O¿3?: 0 à 1,5 %, Fe¿2?O¿3?: 0 à 3 %.
Patent CA-2170643-A1 (CA)
Title: Extreme pressure lubricant
Inventor: ZEHLER EUGENE R
IPC: C10M111/04
Filed: 1994-08-22
Abstract: An extreme pressure industrial gear lubricant having enhanced oxidative and thermal stability, lower poor point, and higher viscosity index relative to petroleum-based lubricants is comprised of a poly-.alpha.-olefin, a polyol ester, a polybutene oligomer, an antioxidant, and an extreme pressure additive.
Patent CA-2170788-A1 (CA)
Inventor: LEAVITT FREDERICK WELLS
IPC: B01J39/14
Filed: 1996-03-01
Abstract: An improved process for production of mixed cation-exchanged adsorbents that involves a single pass ion exchange.  The precursor (non-exchanged) zeolite is treated with a combined essentially stoichiometric and excess solution of desirable weakly held and strongly held cations so that the resultant zeolite has the required mixed cation composition, while consuming smaller amounts of weakly held cation.  Ion exchange post-treatment includes an optional equilibration step to ensure a uniform adsorbent and an optional washing step.
Patent CA-2173491-A1 (CA)
Inventor: LANDUA WERNER
IPC: B22C15/00
Filed: 1994-10-06
Abstract: Un dispositif de remplissage de têtes de soufflage (1) avec des matières à mouler (2) comprend un réservoir (3) de matières à mouler (2), un organe (4) de décharge des matières à mouler (2) dans la tête de soufflage (1) et un organe de remplissage (6) qui comprend un organe de fermeture (5) de l'organe de décharge (4). L'organe de remplissage (6) est monté mobile en hauteur sur un bâti (7) de la machine, ce qui permet d'introduire l'organe de décharge (4) dans la tête de soufflage (1) à remplir. Afin d'assurer un remplissage prédéterminable et reproductible avec précision de l'organe de remplissage (6) avec des matières à mouler et d'autre part une détermination précise du niveau de remplissage de l'organe de remplissage (6), un dispositif de pesage (8) qui sert à déterminer le poids de l'organe de remplissage (6) est monté entre l'organe de remplissage (6) et le bâti (7) de la machine.
Patent CA-2177622-A1 (CA)
Title: Cryptographic data integrity apparatus and method based on pseudo-random bit generators
Inventor: MOREAU THIERRY
IPC: H04L9/00
Filed: 1996-05-29
Abstract: A cryptographic method to ensure data integrity is disclosed. It uses pseudo-random bit generators. An apparatus implementing the method is also disclosed. The method provides data integrity protection and confidentiality protection at once, using a shared secret key. A variant provides data integrity protection only, using a shared secret key. A variant of the disclosed method lifts the restriction on re-use of a secret key in the case of a stream cipher. Yet another variant provides a secure hash function of the type used in digital signature schemes, this time requiring no secret key. For each bit of the original message, the present invention uses one of ten independent pseudo-random bit generators as a key stream source for double stream cipher encryption. A unique heuristic algorithm changes the following generator selection out of the group of ten. This arrangement corresponds to a new definition for a "perfect data integrity cipher", where the illicit modification of a single bit in the ciphertext causes a permanent and random alteration of the remaining portion of the message recovered by the legitimate receiver. The disclosed method improves the cryptographic security of pseudo-random generation algorithms.
Patent CA-2177735-A1 (CA)
Title: System and method for providing compressed digital teletext services and teletext support services
Inventor: WOO ARTHUR S
IPC: H04N21/434
Filed: 1994-12-02
Abstract: A teletext system provides teletext services and teletext support services in a multiservice communica-tion system. Multiplex data streams for a plurality of services, including teletex data, are transmitted in a se-quence of frames between a transmitter location and a receiver location. Teletext information is transmitted in the format of a header packet and a data packet. The header packet contains information identifying the tele-text information according to page number as well as other filter fields, such as language (filter 4), time zone (filter 2), etc. By appropriate selection of the values of the filter fields, the operator is afforded greater flex-ibility in providing a variety of classes of service and service support to subscribers. In addition, the system may easily be reconfigured to support the addition of services or the cancellation of services.
Patent CA-2179223-A1 (CA)
Inventor: VON WILLICH MANFRED
IPC: H04N7/167
Filed: 1996-06-17
Abstract: In a method and apparatus for controlling the operation of a signal decoder in a broadcasting system, a broadcast signal and an encrypted signature are generated and the signature is added to the signal. The signal together with the signature is broadcasted and received in the decoder, where the signature is decrypted and compared with a verification value. If a match occurs, further operation of the decoder is allowed. If a match does not occur, further operation of the decoder is disallowed.
Patent CA-2183096-A1 (CA)
Title: Cellule d'essai de melanges fluides adaptee a detecter des changements de phases
Inventor: BEHAR EMMANUEL
IPC: G01N33/28
Filed: 1996-08-09
Abstract: - Dans une chambre d'un corps délimitée par un piston mobile, on introduit un mélange contenant des substances susceptibles de se déposer ou de floculer et au moyen d'une turbine d'homogénéisation mise en rotation par un moteur associé à des moyens d'entraînement magnétique, on établit une circulation du mélange en circuit fermé. En fonction de la pression et de la température, on mesure d'une part les variations de la conductance du mélange passant entre deux électrodes reliées à un appareil de mesure et d'autre part les variations du couple moteur appliqué à la turbine sous l'effet des variations concomitantes de la viscosité apparente du mélange. - Application à l'étude des conditions de formation de dépôts ou de floculations d'asphaltènes dans des bruts pétroliers, par exemple.
Patent CA-2183929-A1 (CA)
Inventor: BINOT PATRICK
IPC: E01F1/00
Filed: 1996-08-22
Abstract: Un écoulement brut d'eaux usées est normalement introduit dans un dessableur (2) pendant des périodes de dessablage, pour y séparer un écoulement dessablé et du sable Pendant d'autres périodes, par exemple de pluie, on introduit un agent coagulant, du sable de lestage et un agent floculant, on fait circuler l'écoulement coagulé dans une zone intermédiaire (14) de maturation puis, avec sensiblement tout le sable et les colloïdes ou particules y agrégés, dans le dessableur, où on sépare par décantation un effluent décanté que l'on évacue et des boues constituées du sable et de colloïdes et particules agrégés que l'onextrait et évacue par les moyens d'extraction (22) et la voie de sortie de sable(51) de ce dessableur; on recueille les boues, on en sépare (54, 63) le sable de lestage pour le recycler dans la zone d'injection de sable et on extrait les boues et le sable en excès (Figure1)